Final answer:
Osteoporosis is a condition that affects the skeletal system, causing bones to become weak and brittle. This imbalance between bone formation and resorption leads to an increased risk of fractures.
Step-by-step explanation:
Osteoporosis is a condition that affects the skeletal system. It is a disorder in which bones become weak and brittle, leading to an increased risk of fractures. The underlying mechanism is an imbalance between bone formation and bone resorption in bone remodeling.